Evaluation of specific growth rate (Sgr) in the rainbow Trout

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Research Paper 01/06/2018
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Evaluation of specific growth rate (Sgr) in the rainbow Trout

Nadar Ali Shah, Hakim Khan, Hameed Ur Rehman, Sardar Azhar Mehmood, Inamullah, Abid Ur Rehman, Wahid Shah, Alamgir Shah
Int. J. Biosci.12( 6), 367-374, June 2018.
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An experiment was conducted in “Trout Culture Training Centre” (TCTC) in Madyan district Swat to study the growth performance of Rainbow trout (O. mykiss) during 2014-15. The aim of this study was to evaluate the physical changes (weight and length), Feed Conversion Ratio (FCR) and Specific Growth Rate (SGR) on the basis of providing two different artificial feeding formulation Type-1 and Type-2. After six months of feeding procedure the body weight of the fingerlings was recorded and the length was measured. Body length and weight increased in Group-1 as compared to Group-2. In group-2 the FCR was significantly higher than in Group-1 (p=0.026). Similarly the specific growth rate was found lower in Group-2 than Group-1 (p=0.061). Whereas Type-1 artificial feeding formulation showed better growth rate in Rainbow trout fingerlings as compared to Type -2 artificial feeding formulations. It was observed that feed with higher protein level was better for the fish growth and the growth of fish was different significantly among the treatment. Thus animal protein containing artificial feed, on the basis of growth performance can be induced in the feed formulation of fry of Rainbow trout (O. mykiss).


Anderson T, Silva DS. 2003. Nutrition. –In Lucas, S. J., and Southgate, C. P. (Ed) Aquaculture. Pages: 502. Blackwell publishing company.

Baçınar Nadir, Çakmak Eyüp, Çavdar Yahya, Aksungur Nilgün. 2007. The effect of feeding frequency on growth performance and feed conversion rate of Black sea trout (Salmo trutta labrax Pallas, 1811). Tur. J. Fisheries. Aqua. Sci 7, 13-17.

Cowx IG. 2005. Cultured aquatic species information program. Rainbow trout (Oncorhynchus mykiss). Fisheries and aquaculture department (FAO). Rome. Online www.fao.org fishery cultured species Oncorhynchus mykiss en available: 15 June, 2013.

Goddard S. 1996. Feed management in intensive aquaculture. 3rd Edition. London. Chapman and Hall.

Hardy RW. 1989. Diet preparation. In Halver, J.E. (Ed) Fish nutrition. 474-548. pages. London. Academic press. Hertrampf JW, Piedad-Pascual F, Handbook on ingredients for aquaculture feeds, Kluwer Academic Publishers, Dordrecht, Boston, London, 2000, p 573.

Hardy RW. 2008. Resource management: Natural, human and material resources for the sustainable development of Aquaculture, Short communications of contributions presented at the International Conference Aquaculture Europe, Krakow, September 15-18, 5-8.

Hepher B. 1988. Nutrition of Pond Fishes. Cambridge Univ. Press, Cambridge.

Hu M, Wang Y, Wang Q, Zhao M, Xiong B, Qian X, Zhao Y, Luo Z. 2008. Aquaculture, 275, 260-265.

Jobling M, Gomes E, Dias J. 2001b. Feed types, manufacture and ingredients. –In Houlihan, D. (Ed). Food intake in fish. Oxford. 419 pages. Blackwell publishing company.

Jobling M. 1994, Fish bioenergetics. Chapman and Hall. London.

Kaushik SJ, Coves D, Dutto G, Blanc D. 2004. Aquaculture, 230: 391-404. Kestemont, P. and Baras, E., 2001. Environmental factors and feed intake. Mechanism and interactions. In Houlihan, D. (Ed) Food intake in fish. Oxford. 344-418 pages. Blackwell publishing company.

Purser J, Forteath N. 2003. Salmonids. In Lucas, S. J. and Southgate, C. P. (Ed) Aquaculture. 502 pages. Oxford. Black well publishing company.

Shiau SY. 2002. In: Webster CD and Lim CE (eds), Nutrient requirements and Feeding of Fin fish for Aquaculture, CABI Publishing, Oxon, UK,  pp. 273-292.

Sogbesan AO, Ugwumba AAA. 2008. Nutritional evaluation of termite Macrotermes subhyalinus. Meal as animal protein supplements in the diets of Heterobranchus longifilis fingerlings. Tur. J. Fisheries and Aquatic sci 8, 149-157.

Starnes CW. 2003. Integrated taxonomic information system (ITIS). Online www.cbif.gc. capls/itisca/next?v_tsn=161989&taxa=&p_king=every&p_string=containing&p_ifx=&p_lang available: 27 November, 2012.

Suzuki K, Mizusawa K, Noble C, Tabata M. 2008. The growth, FCR and fin damage of rainbow trout (Oncorhynchus mykiss) under self-feeding or hand feeding regimes. Fisheries science. Japan. Volume 74, 941-943 pages.

Wang N, Hayward RS, Noltie DB. 1998. Effect of feeding frequency on food consumption, growth, size variation, and feeding pattern of Age- 0 hybrid Sunfish. AquacuIt 165, 261-267.

Woynarovich A, Hoitsy G, Poulsen MT. 2011. Small-scale rainbow trout farming. Fisheries and aquaculture technical paper. Volume 561, Rome. 81 pages.